Artículo
Corti, H.R.; Cortés Páez, H.A. "Comment on “Out-of-Cell Oxygen Diffusivity Evaluation in Lithium–Air Batteries” by He et al." (2017) ChemElectroChem. 4(2):450-453
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Abstract:
In a recent paper, He et al. (ChemElectroChem 2014, 1, 2052–2057) described a methodology for measuring out-of-cell oxygen diffusivity in lithium–air battery (LAB) cathodes, combining an electrochemical device with a classical gas-transport model. We will demonstrate here that the authors erroneously assumed that the Knudsen diffusivity of gaseous oxygen in the porous cathode is smaller than the diffusivity in the electrolyte and, consequently, that the oxygen mass transport would limit the current output of the battery. Therefore, it is impossible to determine the oxygen diffusivity in LAB cathodes by using the electrochemical device proposed by the authors, comprising an oxygen pump, the LAB cathode, and an oxygen sensor. © 2017 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
Registro:
| Documento: | Artículo |
| Título: | Comment on “Out-of-Cell Oxygen Diffusivity Evaluation in Lithium–Air Batteries” by He et al. |
| Autor: | Corti, H.R.; Cortés Páez, H.A. |
| Filiación: | Departamento de Física de la Materia Condensada, Comisión Nacional de Energía Atómica, Avda. General Paz 1499, San Martín, Buenos Aires, 1650, Argentina Instituto de Química Física de los Materiales, Medio Ambiente y Energía (INQUIMAE-CONICET), Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Pabellón II, Ciudad Universitaria, Buenos Aires, 1428, Argentina |
| Palabras clave: | Cathodes; Diffusion; Electric batteries; Electrodes; Electrolytes; Oxygen; Current output; Electrochemical devices; Gas transport; Gaseous oxygen; Knudsen diffusivity; Lithium-air battery; Oxygen diffusivity; Porous cathodes; Lithium batteries |
| Año: | 2017 |
| Volumen: | 4 |
| Número: | 2 |
| Página de inicio: | 450 |
| Página de fin: | 453 |
| DOI: | http://dx.doi.org/10.1002/celc.201600524 |
| Título revista: | ChemElectroChem |
| Título revista abreviado: | ChemElectroChem |
| ISSN: | 21960216 |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_21960216_v4_n2_p450_Corti |
Referencias:
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Citas:
---------- APA ----------
Corti, H.R. & Cortés Páez, H.A. (2017) . Comment on “Out-of-Cell Oxygen Diffusivity Evaluation in Lithium–Air Batteries” by He et al. ChemElectroChem, 4(2), 450-453.http://dx.doi.org/10.1002/celc.201600524
---------- CHICAGO ----------
Corti, H.R., Cortés Páez, H.A. "Comment on “Out-of-Cell Oxygen Diffusivity Evaluation in Lithium–Air Batteries” by He et al." ChemElectroChem 4, no. 2 (2017) : 450-453.http://dx.doi.org/10.1002/celc.201600524
---------- MLA ----------
Corti, H.R., Cortés Páez, H.A. "Comment on “Out-of-Cell Oxygen Diffusivity Evaluation in Lithium–Air Batteries” by He et al." ChemElectroChem, vol. 4, no. 2, 2017, pp. 450-453.http://dx.doi.org/10.1002/celc.201600524
---------- VANCOUVER ----------
Corti, H.R., Cortés Páez, H.A. Comment on “Out-of-Cell Oxygen Diffusivity Evaluation in Lithium–Air Batteries” by He et al. ChemElectroChem. 2017;4(2):450-453.http://dx.doi.org/10.1002/celc.201600524
